Agent Name

Magnesium silicate hydrate

CAS Number

1343-90-4

Formula

Mg2-O8-Si3.H2-O

Major Category

Mineral Dusts

Synonyms

Silicic acid, magnesium salt, hydrate; Magnesium silicate, hydrate; [ChemIDplus] BAROID OIL ABSORBENT; [Halliburton MSDS]

Category

Other Mineral Dusts

Description

Grey to tan odorless granules; [Halliburton MSDS]

Sources/Uses

Permitted for use as an inert ingredient in non-food pesticide products; [EPA] Used as a suspending agent; [Halliburton MSDS] Talc is composed of hydrated magnesium silicate. [Wikipedia]

Comments

Causes mild irritation in 3-day intermittent dermal studies of humans; [RTECS] Contains 2-6% crystalline silica; May cause eye and respiratory tract irritation; [Halliburton MSDS] See "Magnesium silicate." See "Talc (containing no asbestos)."

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